RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the Border Esk (upstream Ewes Water)

Largest measured brown / sea trout: 23.8 cm

The largest brown / sea trout measured in Environment Agency surveys of the Border Esk (upstream Ewes Water) was 23.8 cm, recorded at 2070.00 Westerhall, Rig Burn on 11 August 2021.

Across 483 measured brown / sea trout, the median measured length was 7.5 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Border Esk (upstream Ewes Water).

See brown / sea trout records across England →

Most recent observation24 July 20252068.00 Boyken Burn, Border Esk · 20 fish
Largest measured brown / sea trout
23.8 cm
Median length
7.5 cm
Fish measured
483
Survey locations
8

Individual EA measurements

Largest measured brown / sea trout

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
23.8 cm11 Aug 20212070.00 Westerhall, Rig Burn160390
23.8 cm29 Aug 20192068.00 Boyken Burn, Border Esk155342
22.4 cm29 Aug 20192068.00 Boyken Burn, Border Esk155342
21.9 cm14 Aug 20232068.00 Boyken Burn, Border Esk162977
21.5 cm1 Aug 20222068.00 Boyken Burn, Border Esk161913
20.3 cm29 Aug 20192068.00 Boyken Burn, Border Esk155342
19.9 cm24 Jul 20252068.00 Boyken Burn, Border Esk177589
19.6 cm1 Aug 20222068.00 Boyken Burn, Border Esk161913
17.8 cm11 Aug 20212070.00 Westerhall, Rig Burn160390
17.6 cm1 Aug 20222068.00 Boyken Burn, Border Esk161913

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where brown / sea trout were found

Each point marks a survey location with at least one brown / sea trout record.

Choose a point on the map to see what was recorded there.

Map points are approximate and don’t show fishing access. Check local permissions before visiting.

Place surveyedFirst recordedLast recordedVisits finding brown / sea trout
2068.00 Boyken Burn, Border Esk11 Jul 198524 Jul 202519
2057.00 Shielburn, Border Esk6 Sept 20044 Aug 20225
2072.00 Burnfoot, Back Burn7 Sept 200411 Aug 20214
2071.00 Craig Burn7 Sept 200411 Aug 20214
2070.00 Westerhall, Rig Burn7 Sept 200411 Aug 20214
2056.00 Billholm Burn7 Sept 200410 Aug 20215
2055.00 Bank Burn Foot, Bank Head Burn8 Sept 200510 Aug 20215
2017.00 Bentpath, River Esk1 Sept 20041 Sept 20041

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

1985–2025

Survey records by year

Each bar shows how many survey visits recorded brown / sea trout that year.

Fish measured by surveyors

Measured length distribution

See how the 483 measured fish were spread across different length ranges.

Smallest
4.2 cm
Lower quarter
6.5 cm
Median
7.5 cm
Upper quarter
10.7 cm
Largest
23.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Border Esk (upstream Ewes Water)

Compare other species with enough survey and measurement data for a detailed page.

Stone loach European eel Atlantic salmon

Before you fish

Good to know

These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.

Learn how RiverFish uses the data →